Cannot install Teams using .msi package

You probably want to install teams using GPO, and you actually Microsoft article about this:
https://docs.microsoft.com/en-us/microsoftteams/msi-deployment.

On this website there are msi packages of Teams. Unfortunately, when you want to install Teams using one of them, you encounter a problem, because Teams not starting, even if you can see installed program in the Programs and Features list.

Problem: cannot use .msi package of Teams
Solution: change .msi package by adding ACCEPT_EULA=1 property using Super Orca application.

All you need to do is to add a row ACCEPT_EULA with value of 1.

After that you can save and use changed msi package with the GPO installation package.
NOTE: you need to use user part of GPO, not the computer one, cause "installation" is made in the appdata user folder.

HP Event notifier cannot start

Problem:
You cannot install HP Event Notifier on the Windows Server (2012+)
Solution:

First, you need to add SNMP Service feature to your server.

Then to be sure it runs correctly, add localhost to allowed senders for SNMP packets:

Next, install HP providers, for example from this link:

https://support.hpe.com/hpsc/swd/public/detail?swItemId=MTX_c93c5f85ea0d471baddb6eadfe

Then, run Event Notifier as an administrator:

After configuring, for sending test, run Test WBEM Events as an administrator.

If you encounter an error during sending test or tests are not sent do recipient, restart this service:

and the same with SNMP service

Remote Desktop Services deployment does not exist

When you are on the server and want to list active session using Get-RDUserSession command, you can see an error telling you that your have no RDS installed (even on RDS session broker), like the one below:

Don't be fooled by this - it shows only because you don't have enough privileges. Just run Powershell session as an administrator and bam! You can see desired list.

BTW: My small advice here - if you see PS errors, but you're sure, that cmd-let should work, check it with elevated privileges.